ICE Showing the Formation of Thrombus on the 8/5 Blazer II Catheter Tip During RF Energy Delivery at 55 W and 65°C Without Charge and During Simultaneous Negative Charge Delivery at a Current of 100 μA
(A) Formation of thrombus on the catheter tip can be observed during RF ablation. (B) With the application of a negative charge during radiofrequency ablation, there is no thrombus formation. See Online Videos 1 and 2. ICE = intracardiac electrocardiography; other abbreviation as in Figure 1.